Question about Midland 1001Z 40-Channels Base CB Radio

1 Answer

Midland squealing when talking

I have the same issue some others have been having with the midland 1001z screeching when transmitting..

I rechecked my SWR, all good. it's a new radio, and my buddies said it started later in the day, not right away.

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  • pleblanc Sep 15, 2008

    also checked all my shorts and grounds... all good.. power directly from battery too..

  • pleblanc Sep 26, 2008

    stock midland Mic .. I bought a 2nd unit (complete CB with mic, etc) from amazon since it was so cheap, but have not yet tried it out. Amazingly difficult to test without a 2nd cb to test with. who knew?



    The tuned firestik fs-3 antenna is hard mounted to the rear of the vehicle and the mount is grounded to the chassis. I am using 18' firestik mini 8 coax, and all firestik mounts and hardware. I installed the antenna with the FS quick disconnect.



    This midland CB unit does not have Mic gain, so I cannot adjust the gain.

  • Palmbeach
    Palmbeach May 11, 2010

    I guess it sounds as though you're doing everything right. This is almost certainly caused by RF getting in to the rig somehow. If it's not the mic, it will be through the power cable or something. Yes, it is difficult to test without a second unit to use as a monitor. If you are able to set something up, get hold of a dummy load and see if the screech is still there. My guess is that it won't be. These are amazingly common problems but can almost always be resolved in the end unless of course your radio itself is faulty Good luck anyway....

  • Palmbeach
    Palmbeach May 11, 2010

    Communicomm has probably hit the right spot by asking what mic you are using?

    If you are using a fancy microphone that has a preamp built in to make it more sensitive, it is probably picking up RF from your antenna. This is called RF Feedback.



    That means that radiated signal from the antenna is getting into the speech audio circuitry and causing the screech.



    Firstly, make sure your antenna is as far away from your rig as possible.



    Next, make sure that your antenna cable is high quality and used correctly secured connectors.



    Thirdly, make sure your antenna is tuned correctly.



    Fourthly,do not over modulate the mic gain, keep it at a moderate setting and avoid using power mics.



    Remember that high mic gain will not give you a stronger signal it will just give you distorted audio! You can filter your mic cable by using a ferrite ring A ferrite ring is what is says, a ring of ferrite. You simply wind your mic cable through the ring as many times as you can as close to the mic plug as possible. This will act as a low pass filter and allow speech frequencies to pass but will stop RF passing and getting into your rig.



    Finally, you can test to see if you are suffering with RF feedback by reducing or increasing power. If you do this and the screech increases and decreases accordingly, this will confirm the cause.



  • David Eisenberg
    David Eisenberg May 11, 2010

    What microphone are you using? Have you tried others? Is the antenna magnetically mounted?

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  • 39 Answers

Soundwas keying up at the same time.s like it could be one of two problems. a loose wire in the mic or some one near you keyed up the same time as you. if the wire in the mic is loose sodder it. If some one keyed up near you you might have blown the reciever chip.

Posted on Oct 06, 2008

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1 Answer

When i talk to someone, all they hear is squealing and cannot hear what i'm saying, this is a brand new cb


Hi dm,
Welcome to FixYa.
My name is John. I will be assisting you with your issue.
Take the end of the mic. apart and check for a wire loose
touching another wire. Post back on reply.
John

Jan 31, 2011 | Midland 1001Z 40-Channels Base CB Radio

2 Answers

Get feedback during transmit over the audio. Rec. is OK. Tried it with the other unit several miles away and still has the squeal overriding the audio so bad that it is unintelligible.


Hi, my name is John. Try using a different mike on it. Make sure it is one wired for it. Sounds like it is in the mike area...let me know how it goes.hope this was helpful.Rate this solution on the four thumbs-up.........John

Sep 08, 2010 | Midland 1001Z 40-Channels Base CB Radio

1 Answer

High pitched squeal when trying to transmit


What mic are you using for this. It won't take just any mic. It has to be wired midland.

Aug 17, 2010 | Midland 1001Z 40-Channels Base CB Radio

1 Answer

I have a midland 1001z cb radio with a magnetic mount attenna by cobra. When I transmit receivers are getting a lot of squealing. Before I bought the midland i had a radio shack cb which worked find.


is this same antenna as before. you should always check the SWR's to see if set correctly.. other than that. bad grounds, bad microphone can make any radio squeal..

Nov 27, 2009 | CB Radios

2 Answers

Receivers complain about squeeling noise from my midland 1001z when I transmit. Is this an RF Gain setting problem?


I had the same (squealing) problem on transmit with the Midland 1001Z when I used it indoors as a base unit. The problem was my power supply: it broke into oscillation when drawing more than 150 mA at 13.8V. The 1001Z draws about 150 mA on Receive, and much more (but only about 900 mA) on Transmit. If using the 1001Z as a base unit, I suggest you power it with a fully-charged car battery indoors, or test your power supply to check if it can't supply the required 1 Amp, approx., on Transmit. It's a GREAT radio, just give it a good power supply. My power supply was defective out of the box, but now I have a good one and get great reports on signal strength and audio quality. Remarkable, for the low price and 3 year warranty. Good luck!

--Sky Junkie / Tucson, AZ / USA

Sep 27, 2009 | Midland 1001Z 40-Channels Base CB Radio

1 Answer

MIdland no sound s/rf dancing


may be u burned yr final transistors...check if yr antenna is well grounded and try just after this to transmit, if the indicator is not stable on the green area when you are in "am" modulation stop to try and bring to the assistance
rgds Stefano

Dec 17, 2008 | Midland 1001Z 40-Channels Base CB Radio

1 Answer

How far can that midland 1001z radio transmit.And recieve.


Running most any regular cb, including this one barefoot (with no kicker), having a good antenna, set up with a good ground plane or a no-goundplane antenna, good coax; basically everything in good working order, you can usually bank on about 4 to 5 miles crisp and clear, and at least 6 to 10 miles fairly clear. Of course the further out you get it will start to fade out.

Some radios do better than others, but those are the general numbers I have seen in my years of experience.

Dean Pitts
Rollin CBs
Mt. Vernon, TX

Apr 27, 2008 | Midland 1001Z 40-Channels Base CB Radio

2 Answers

"squeak" when transmitting


Make sure you have a good ground for the radio and antenna. How long is the antenna coax if a little to long and you have extra what did you do with it coil it if so uncoil it and lay it out try it. If no luck I would shorten the coax and recheck your SWR.

Jun 22, 2007 | Midland 1001Z 40-Channels Base CB Radio

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